/* ===================

AX2E (AXESCON XACML 2.0 Engine) is the Java authorization engine, which implements OASIS XACML 2.0 standard.
Copyright (C) 2007 AXESCON LLC

This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.

This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA


Contact: AXESCON LLC - info{at}axescon.com

 =================== */
package axescon.xacml.engine.fn;

import axescon.xacml.api.ExpressionEvalIndeterminateException;
import axescon.xacml.api.Liquid;
import axescon.xacml.model.shared.attr.BooleanAttribute;

import java.util.Arrays;
import java.util.List;

/**
 * @author Date: Sep 28, 2005
 *         Responsibilities:
 */
public class FnSetAtLeastOneMemberOfBase extends FnSetBase {
    public Liquid exec(Liquid[] args) throws ExpressionEvalIndeterminateException {
        List arg1 = Arrays.asList(args[1].getBagUnsafe());
        arg1.retainAll(Arrays.asList(args[0].getBagUnsafe()));
        return new Liquid(new BooleanAttribute(!arg1.isEmpty()));
    }

    public Class getReturnDataType() throws ExpressionEvalIndeterminateException {
        return BooleanAttribute.class;
    }
    

}
